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arXiv 2203.10465cs.CRcs.LGq-fin.ST
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Inspection-L:用于比特币洗钱检测的自监督GNN节点嵌入

Inspection-L: Self-Supervised GNN Node Embeddings for Money Laundering Detection in Bitcoin

The University of Queensland(昆士兰大学)

Wai Weng Lo, Gayan K. Kulatilleke, Mohanad Sarhan, Siamak Layeghy, Marius Portmann

摘要:

犯罪分子在使用比特币等加密货币进行洗钱方面越来越有经验。使用加密货币可以隐藏犯罪身份,并通过犯罪数字钱包转移数亿美元的肮脏资金。然而,这被认为是一个悖论,因为加密货币是开源情报的金矿,使执法机构在进行法医分析时拥有更大的权力。本文提出了Inspection-L,一个基于自监督深度图Infomax(DGI)和图同构网络(GIN)的图神经网络(GNN)框架,具有监督学习算法,即随机森林(RF),用于检测反洗钱(AML)的非法交易。据我们所知,我们的提案是第一个将自监督GNN应用于比特币中的AML问题的提案。在Elliptic数据集上对所提出的方法进行了评估,结果表明,我们的方法在关键分类指标方面优于最先进的方法,这证明了自监督GNN在检测非法加密货币交易方面的潜力。

英文摘要:

Criminals have become increasingly experienced in using cryptocurrencies, such as Bitcoin, for money laundering. The use of cryptocurrencies can hide criminal identities and transfer hundreds of millions of dollars of dirty funds through their criminal digital wallets. However, this is considered a paradox because cryptocurrencies are goldmines for open-source intelligence, giving law enforcement agencies more power when conducting forensic analyses. This paper proposed Inspection-L, a graph neural network (GNN) framework based on a self-supervised Deep Graph Infomax (DGI) and Graph Isomorphism Network (GIN), with supervised learning algorithms, namely Random Forest (RF), to detect illicit transactions for anti-money laundering (AML). To the best of our knowledge, our proposal is the first to apply self-supervised GNNs to the problem of AML in Bitcoin. The proposed method was evaluated on the Elliptic dataset and shows that our approach outperforms the state-of-the-art in terms of key classification metrics, which demonstrates the potential of self-supervised GNN in the detection of illicit cryptocurrency transactions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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